In my script I need to accept date time strings in three formats: 
2014-07-12
2014-07-12 1:00
2014-07-12 01:00

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In this example I need to change "1:00" to "01:00" before passing to a DB query. This is how I am doing it: 
sub parse_time {
    my $time = shift;
    return $time unless $time =~ m/\d{1,2}:\d{2}$/;
    return $time if $time =~ m/\d{2}:\d{2}$/;
    $time =~ s/(\d{1}:\d{2})$/0$1/;
    return $time;
}

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It works, but it feels kludgy - any advice appreciated.

In reply to Parsing a date time string by bangor

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